Dynamic workflow architectures for loan processing

ABSTRACT

A method according to certain aspects includes launching a plurality of activities representing tasks to be completed in the processing of a workflow. The method can include determining that a set of the plurality of activities are not currently available for execution, and updating an output comprising a user interface based at least in part on the determination.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No. 12/966,820, filed Dec. 13, 2010, which is a continuation of U.S. patent application Ser. No. 11/278,929, filed Apr. 6, 2006. The disclosures of each of the foregoing applications are hereby incorporated by reference in their entireties herein.

FIELD

The present invention relates generally to loan processing, and more particularly to systems and methods for processing loans in dynamic workflows.

BACKGROUND

The origination of mortgage loans and related products such as home equity lines of credit is highly complex in that it depends on the timely interactions of numerous participants such as brokers, lenders, appraisers, and insurers. These participants often are geographically dispersed, have varying levels of technology, are governed by different regulatory entities, and differ widely in scope and scale.

This complexity presents overwhelming challenges to the automation of loan origination through traditional methods and practices in information technology (IT), particularly workflow. Indeed the notion of a “flow” itself, the sequence of activities that unfolds in the processing of a loan, is non-deterministic, meaning that it cannot be determined in advance with a significant level of accuracy. This is due to the broad dependency of many activities on context—the values of external parameters at the moment the activity commences. An example is the willingness of a lender to relax a particular underwriting criterion based on how close it is to filling a commitment to deliver that type of loan to an investor.

In the last several decades there has been significant progress in the use of software to automate workflow, particularly in medium and large businesses. Classic examples of workflow come from manufacturing, where tasks are mostly physical and have straightforward sequencing.

The conceptual leap from automating workflow in physical domains such as manufacturing to workflow in more “virtual” domains such as financial services is moderately large but understandable for financial services having clear-cut processes. For example, it is straightforward to visualize a transaction such as a withdrawal from a checking account and how its component tasks (authentication of withdrawer, verification of sufficient funds, etc.) are carried out by a combination of human and system workflow execution.

A simplifying assumption that has enabled much success in workflow automation is that the environment (the tasks, roles, events, messages, etc.) is fairly static and well-understood at the time the automation system is designed. When the environment is known, contained, and controllable, one can achieve significant automation benefits with a monolithic, client-server-based application running on a secure local network that achieves deployment and operational simplicity by imposing or assuming proprietary patterns on the environment. Further, at run-time, if the system can assume a deterministic sequence of activities at the outset of a workflow, some optimization can be made—though at the expense of flexibility to later incorporate new activities and flows.

However, in a more complex domain and environment such as mortgage origination, where tasks are distributed across multiple geographies, enterprises, and systems, and where no single entity has enough control to impose proprietary patterns, it is much more difficult to automate workflow. Traditionally, what has evolved is an environment where some level of automation has been achieved within individual enterprises but interaction with external firms is carried out through tenuous integrations or manual rekeying of data. There has been little success in achieving management or even mere statusing of participant firm workflows aggregated at an overall “meta workflow” level.

Therefore, there is a need for systems and methods for processing loan applications in complex environments, e.g., mortgage origination, in which the sequence of actions for processing the loan are not known in advance.

SUMMARY

Provided herein are systems and methods for processing loan applications in dynamic workflows, which do not require that a sequence of actions be known in advance and which have the flexibility to incorporate new activities and flows.

In a preferred embodiment, a system calls an activity engine with a top-level activity for processing a work-item, e.g., a loan application. The activity engine decomposes the top-level activity into child activities and lower-level child activities, and recursively calls itself to process the child activities until all constituent child activities have been preformed, thus performing the original top-level activity.

In the preferred embodiment, the activity engine launches an activity manager and an activity performer for each activity, wherein the activity manager manages the activity and the activity performer performs the activity by calling at least one service. The service may be a local service within the system or a remote service, and may require user interaction, e.g., an underwriting decision from an underwriter.

In the preferred embodiment, each activity, work-item, user, event and role has associated rules, wherein an event represents a change in state of an activity and a role represents a class of users of the system having shared attributes. The evaluation of the associated rules dynamically creates the flow of activities. For example, an activity may have an associated rule making the activity dependent on the occurrence of an event, e.g., a change of state of the activity or another activity. Preferably, the rules are evaluated as late as possible, allowing for the optimization of resources based on the context at the time the associated task is to be performed.

In one embodiment, the system provides a visual representation that allows a user of the system to view the status of a subset of activities for a work-item based on the role of the user, the present state of the work-item, and external context.

The dynamic workflow has the advantage of not requiring that an exact sequence of actions be known in advance. Further, the dynamic workflow makes the addition of new types of activities, users, rules and products to the system much easier without having to work through all possible flows, exceptions, and other implications of each addition.

Other systems, methods, features and advantages will be or will become apparent to one with skill in the art upon examination of the following figures and detailed description.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows an exemplary main screen of a user interface according to an preferred embodiment.

FIG. 2 shows an exemplary screen of an activity plan according to an preferred embodiment.

FIG. 3 is a diagram representing exemplary operations of a dynamic workflow architecture according to an embodiment.

FIG. 4 is a diagram representing data types and structures that are used to support to a dynamic workflow architecture according to an embodiment.

DETAILED DESCRIPTION Definitions

As used herein, the terms below are defined as follows:

Service—an encapsulation of programming logic, analogous to a procedure or method, that can be local or remote and that is callable by other Services.

System—instance of the architecture running on a particular hardware environment for a particular enterprise.

Work-Item—the main conceptual entity(ies) and associated data structure(s) being worked upon in the carrying out of activities (e.g., a loan application).

Activity—a task that must be completed. Activities may contain other Activities (“Child-Activities”). An Activity may represent logic that is carried out manually by a User, automatically by the System, or by an External System.

Child-Activity—an Activity contained by another Activity or subordinated to another Activity.

Activity Engine—a Service that processes Activities, calling Services and/or presenting a User Interface (UI) to relevant users as appropriate.

Activity Manager—an entity within the Activity Engine that manages the carrying out of an Activity. Each Activity has its own instance of an Activity Manager.

Activity Performer—an entity within the Activity Engine that does the work of an Activity. Each Activity has one instance of an Activity Performer. The Activity Performer calls Services in carrying out its work. If the Activity include Child-Activities, the Activity Performer recursively calls the Activity Engine to carry out those Child-Activities.

Conductor—a special Activity Performer that serves as the root for a hierarchy of Activities. External System—external application or service called by System using an interface in order to carry out an Activity. Role—a class of Users sharing certain attributes such as access privileges, ability to execute certain tasks, etc. State—the values of input parameters and/or temporary working variables and/or results of an entity within the System (possibly the entire System itself). Event—a discrete change in State at a discrete point in time that is represented and tracked within the system. Pattern—a template, class, schema, structure, meta-data etc. that describes how other data is structured and/or what it means.

Instance—a particular set of data that conforms to a Pattern.

Web services—a set of protocols and practices, including XML, SOAP, and domain-specific XML schemas, that enable software applications to make calls to other applications (“services”) over the Web.

User Interface

FIG. 1 shows an exemplary main screen of a user interface (UI) that a user sees upon login to a system according to an embodiment. The UI manifests several unique aspects of dynamic workflow that are helpful in explaining its approach and benefits.

In the preferred embodiment, the UI is completely Web-based but uses an approach referred to as rich internet applications (RIA) that brings to a web browser many of the benefits of traditional client-server applications such as high performance and complex mechanisms like drag-and-drop. The UI can be implemented using the Macromedia “Flex” platform and its ActionScript language. This approach contains a virtual desktop within the browser window, and window-like entities called pods. Pods are the basis for modularity within the UI, and in many cases a pod corresponds to an underlying Web service.

Workflow is manifested in the UI in several important ways. To start, each user upon login sees a screen similar to the one shown in FIG. 1 but with a layout and content (pods as well as functions within pods) that are specific to his role. The example screen in FIG. 1 shows five pods 10 a-e. The user may personalize the layout and content within limits defined by his role. A further basic manifestation of workflow is that the content of the pods (e.g., loans being processed) reflects the state(s) of activity(ies) in which the user is participating at a point in time. These states may be reflected in status indicators on the screen, which are discussed below.

A variant of each of two basic pods appears on every user's main screen: a Main Queue 10 a and an Activity Plan 10 b (e.g., a Loan Activity Plan). The Main Queue 10 a contains the messages and/or links to Activities 15 that the user is currently responsible for completing. For example, when an underwriter logs in, any loans awaiting her underwriting approval will appear as clickable items in the Main Queue. The Activity Plan 10 b gives the user a snapshot of the activities related to a particular work-item (loan), some of which are the user's own responsibility and some of which are assigned to other users. The Activity Plan 10 b is shown in greater detail in FIG. 2. For the example in FIG. 2, the user currently logged in is John Smith. John Smith may carry out the activities within any column 20 a-e in which his name appears in a workgroup 25 a-e above the column. Other users, e.g., Mary Jones, who also appear in a column's workgroup 25 c-d may also carry out the activities in the column 20 c-d.

The Activity Plan also includes a status indicator for each activity. For example, the Activity Plan 10 b in FIG. 2 has the following status indicators 30:

-   -   1. No circle next to activity indicates that the activity is not         yet startable due to dependencies.     -   2. Clear circle indicates that the activity is startable but not         yet started.     -   3. Half red circle indicates that the activity is started and in         progress.     -   4. Green circle indicates that the activity is complete and         valid.     -   5. Red circle indicates that the activity is complete but later         invalidated.

There are several important characteristics to note in how the dynamic workflow mechanism is manifested in the Loan Activity Plan:

-   -   1. There is not a rigidly defined template for flows and steps         but rather a generalized hierarchy of activities and child         activities that combine in various ways for different contexts.         For example, the Activity Plan 10 b in FIG. 2 shows a hierarchy         of activities comprising three levels. For example, the activity         “Application” 35 contains two second-level child activities         “Loan Application” 40 and “Program and Lock” 45. Each of these         second-level child activities 40 and 45 contain third-level         child activities 50 and 55, respectively.     -   2. The subset of activities displayed at any moment is governed         by the states of all known activities—i.e., what has already         been completed, what are open and/or have issues, and what are         yet to be completed. The state of an activity can be either or         both its own state and the states of its child activities.         Significant simplicity of definition and operation is achieved         by letting a state be tracked and managed as low as possible         within the branches of the hierarchy and creating roll-up views         only at the moments necessary.     -   3. Different users see different subsets of the tasks in a         particular work-item's (i.e. loan's) activities—different         subsets at each level in the hierarchy. For example, a loan         officer might see all steps at the top level and down to the         third level in his primary (“Application”) top-level task but         only down to the second level under the other top-level tasks. A         processor might only see the “Processing” and “Underwriting”         top-level tasks but see down to the third level under both of         those. The rules that govern what subsets of the task hierarchy         appear to each user are organized in a mapping between the         overall task hierarchy and the role hierarchy.

Dynamic Workflow Architecture

The primary element of the System is the Activity. The Activity is preferably processed by an Activity Manager, which carries out the intended actions to complete the activity by launching an Activity Performer through a recursive call to the Activity Engine. In performing an Activity, the Activity Performer may itself initiate other Activities by launching them with their own Activity Managers. Such Activities are preferably referred to as “Child-Activities”, but there is nothing special about their structure or execution other than that they were launched by “Parent-Activities”.

In the preferred embodiment, the Activity Engine, Activity Manager, and Activity Performer are implemented as Java classes. Instances of these classes are created and destroyed as needed while the system is running. The Java Virtual Machine that serves as the environment or “container” in which these instances (objects) are created is the BEA WebLogic application server running on the Solaris operating system on Sun Microsystems hardware. The system also uses an Oracle database, which typically runs on separate Sun harward.

Activity Performers carry out the Activity's intended actions by calling appropriate Services. A Service may be implemented within the System or interface to an external service such as a Web service. Activity Managers are robust in that they manage all states necessary to complete Activities even if they are long-running, depend on many other activities, experience a system crash or shutdown, etc. From the standpoint of the Activity Performer, calls to local and remote Services appear the same—this is the layer of abstraction that allows the system to be easily changed to perform a given service natively or via a third party. Calls to the local Service “CalculateAPR” and the remote Service “GetFloodCertificate” might look like:

CallService( “CalculateAPR”, XMLStructHoytMorgan ) CallService( “GetFloodCertificate”, XMLStructHoytMorgan

The corresponding implementation of these Services might be:

CallService( String ServiceName,ServiceStruct ServiceInputs ) {    Switch ( ServiceName ) {       Case ( “X” ) {       ...       }       Case( “CalculateAPR”          CallLocalService( “CalculateAPR”,          ServiceInputs )       )       Case ( “GetFloodCertificate” ) {          CallWebService( “http://service.abcflood.com”,                ServiceInputs )       }       ...    } }

FIG. 3 is a diagram representing exemplary operations of a dynamic workflow architecture according to an embodiment of the invention. As shown in FIG. 3, Activities are arranged hierarchical with a top-level Activity 110 (e.g., “process loan XYZ”) carried out by a root Activity Performer, known as a Conductor 120. The top-level Activity 110 is decomposed into lower-level Activities 130 a-b (e.g., “Application”, “Processing” from FIG. 2). Each of these Activities 130 a-b has a Activity Manager 140 a-b, Activity Performer 145 a-b and State 150 a-b associate with it. Also shown is the Child-Activity 155 of Activity 130 a and its associated Activity Manager 160, Activity Performer 165 and State 170.

Non-Determinism

An important aspect of the dynamic workflow is that there is no overarching rigid sequence or “flow” that is known, presented, and carried out upon launch of a top-level Activity (an example of a top-level Activity might be “process loan XYZ”). The exact set and sequence of actions is not known in advance. Each time an Activity Manager processes an Activity, it executes rules specific to that Activity using inputs specific to the context at the time the processing occurs. Some Child-Activities may not be executed at all given inputs in a particular context. Other Child-Activities may have sequence dependencies, expressed as rules, e.g., Child-A must be performed before Child-B. In cases where no such dependency exists and thus is not expressed in a rule, the Activity Performer is free to carry out the Child-Activities in any order or even in parallel.

The strength of this non-deterministic, build-as-you-go approach to workflow is that it is much easier to add new types of Activities, rules, users, products, etc. into the system without having to work through all possible flows, exceptions, and other implications of each addition. Though there are certain global optimizations that cannot be made without more determinism at the outset of a workflow, this is outweighed by the optimization that can be achieved by allowing the system to perform Activities in parallel or in a sequence best suited to the context at the time of performing.

Services and Data

There are fundamentally two types of entities in the system: services and data. Services are generalizations of program procedures or routines that are implemented using certain standards and/or practices that hide whether a given service is carried out locally or remotely. Activity Managers and Activity Performers are examples of services. The meaning of data here conforms to typical software notions of data (discussed further below). An instance of an activity is essentially a set of activity attributes and their associated instance-specific values.

The Conductor

As discussed above, Activity Performers carry out the work of Activities. A special type of Activity Performer called the Conductor serves as the root of the hierarchy of Activities that get carried out for a given top-level Activity such as “process loan”. The Conductor maintains the evolving state of one or more Work-Items (e.g. a loan application) associated with the top-level Activity.

The Conductor manages an Event Queue, which receives Events from Child-Activities and services. Activity Managers can register with the Event Queue in order to receive notification when desired Events occur. The Event Queue works in conjunction with the Conductor's base “Clock” to allow events to be queued for notification at a future time. The Work-Item(s), the Clock, and the Event Queue are the three core state items that the Conductor maintains throughout its life.

Events can be thought as intermediaries by which Activities instigate change(s) in their state(s) or the state(s) of other Activities. For example, if a user of type “Processor” indicates to “Submit to Underwriting,” the state of the Underwriting Activity is changed to “submitted,” and an event is generated that causes the system to create an alert for the Underwriter that her input is need for the current loan. The state of the Underwriting Activity will not change until the Underwriter logs in and carries out actions that affect this state. When looking at the system as a whole, the Events are part of the overall state of the system, but from the perspective of Activities, the Events are better thought of as signals for changing a state of a Activity rather than a state itself.

As the root of the Activity hierarchy, the Conductor contains the special rules and logic to query the tree of Child Activities for their states and to manage the structure underlying the Activity Plan. As discussed earlier, there is not a rigid, deterministic plan that is known comprehensively at the outset of executing a top-level Activity. Rather, at any given moment, there is the set of states of all Activities that have been completed, and the set of likely future Activities that are expected to be carried out based on the context at the moment.

There is a subtle trade-off between determining enough of what is expected in the future to present a useful “plan” and leaving enough undetermined so that computation is not wasted. The Conductor is where this optimization is embodied.

The Activity Engine: Recursive Activities

The Activity Engine is the service that “hosts” the Activity Managers; it is the virtual machine on which an Activity Managers' processes run. It is essentially a recursive procedure: one calls the Activity Engine with an Activity, and the Activity Engine decomposes the Activity into Child-Activities, calling itself to process each Child-Activity. To start the whole procedure, the System calls the Activity Engine with a Top-Level Activity. Again, the Activity Performer for the Top-Level Activity is the Conductor.

As discussed above, in the preferred embodiment the Activity Engine is implemented as a Java class, a single instance of which is created and launched along with a Conductor to jump start the system.

Data

Discussions above regarding some of the basics of the workflow mechanism make loose references to data and data structures such as “state” and the data of the Activities themselves. The discussion that follows looks in greater detail at some of the basic types of data, how they relate, and how frequently they change so as to bring more specificity to how the mechanism works. The diagram in FIG. 4 expands the “Data” box from the previous diagram to help establish a working vocabulary of entities.

Categories of Dynamic

The data types are preferably roughly organized into three categories based on relative frequency of change. Somewhat Dynamic Data 210 is likely represented in software configuration files or in fairly static database schema; these may change on a scale of weeks or months, with fairly restricted access to change. They are typically patterns or structures, instances of which are created and deleted frequently in one of the more dynamic categories. Moderately Dynamic Data 220 are instances of the patterns in the Somewhat Dynamic category, or they are patterns that can be created through UI rather than programming (e.g. the creation of a new Event pattern). Highly Dynamic Data 230 are instances of patterns from the previous categories.

An important point in making this distinction is that, in contrast to the traditional way of thinking about databases where one creates the structure at design-time (tables and relations) and populates the structure with instances (rows in the tables) at run-time, the system derives significant flexibility from the ability to easily create new structures without reprogramming the system.

Rules

Another important feature to convey in the diagram in FIG. 4 is the variety of rules and the types of data fundamentally dependent on, or expressed as, rules. This is why the Rules Engine is highlighted as a special service in the services architecture diagram in FIG. 3, and the rules as special data structures in FIG. 4. As referenced earlier, a significant way in which the invention simplifies the computational complexity of managing workflow in a complex domain such as loan processing is to “construct” the workflow dynamically as it unfolds rather than statically at the outset. In addition to enabling optimization based on contextual input unforeseeable up front, this approach also simplifies computation (and thus improves performance) because only the logic that is relevant to a particular workflow is evaluated. The primary method for achieving this “last-minute” evaluation of logic is to encode such logic as rules rather than explicit steps that have to be added to each of many procedures. By encoding rules using consistent patterns and syntax, one can concentrate the responsibility for optimal evaluation and execution of rules in a localized entity as we have done in the Rules Engine Service.

Note that the Rules Engine is essentially a stateless machine, meaning that for a given task (e.g. determining what to display on the screen) the engine is given the rule-set and any needed inputs, and it processes the rules in order to return outputs to the caller. Thus it is up to the callers of the Rules Engine to store their respective rule-sets, any state used as inputs, and any state needed to track when previous rule outputs are still valid versus when the Rules Engine needs to be called again. One example is a rule-set governing what to display for a Loan Activity Plan—this rule-set likely needs to be run each time the screen changes in order to be assured of reflecting up-to-date parameters such as the current window size and current statuses of all displayed activities. Another example is the rule-set governing whether the status of an Activity is complete and valid (resulting in a full green Status Indicator). The Activity itself “listens” for certain Events that indicate a state change in a dependent Activity that renders the current Activity no longer valid. When such an Event occurs, the Activity re-calls the Rules Engine with the validation rule-set, and if the Activity is determined to be no longer valid, the state and Status Indicator are changed accordingly.

Data Types

The main data types that are key to the dynamic workflow approach are categorized. Note that most data types comprise a pattern and instances and that for each data type rules may be associated with a pattern (covering all instances of the pattern), an instance (applying only to a single instance) or both.

Roles are the basic patterns for Users. Rules can be created at the pattern or instance level. A Work-Item is the main entity being worked on, such as a customer record (loan application). Rules can be created at the pattern or instance level.

Products are associated with a Work-Item as part of carrying out Activities. The notion of a Product is perhaps a more specific to the financial domain than other concepts here such as Role and Work-Item, but the general activity of applying for, qualifying for, and ultimately receiving a financial product motivates much of the workflow approach. Rules are defined for Product instances. An example of a loan product is a 30-year fixed-rate mortgage. An example eligibility rule is “applicant is eligible for this product if applicant's loan-to-value ratio is less than 80%”. An example adjustment rule is “if applicant's loan-to-value ratio is greater than 75% and less than 80%, add ⅛ to the base rate”.

Events are generated by the carrying out of Activities and are used as inputs to Rules governing the need and timing of other Activities. Event rules are defined at the instance level. Activities are the elemental unit of work described earlier. Activity rules are held in the patterns.

State, such as Activity Manager State (represented both in FIG. 4 and as the small cylinders in FIG. 3, includes whatever logistical or ancillary data is needed to carry out activity and/or survive system interruptions.

Activity Plan Details

As discussed earlier, unlike traditional workflow systems and approaches, the present dynamic workflow approach does not have a predefined flow or sequence of tasks at the outset of a process. Instead there is a notion of a goal, the means to achievement of which is represented by an Activity. The Activity is given to an Activity Engine, which decomposes the Activity into Child-Activities and low-level units implemented as Services. The Activity Engine recursively calls itself with Child-Activities until all constituent Child-Activities have been performed, thus fully performing the original top-level Activity. This describes how work to be done to fulfill a goal is represented and carried out.

In addition, a key feature of this approach and the hierarchical representation of Activities is how the system can check and present status of the work being carried out. Looking again at the screen shot of the example Loan Activity Plan in the FIG. 2 above, Activities are represented on the screen. Using the terminology established above, a basic Work-Item is depicted, which is a loan application. The Activity Engine has been called by the system with top-level Activity “Process Loan” for this particular loan. A User, who is responsible for one or more of the Activities constituent to this instance of “Process Loan” has logged into the system and sees the above screen.

The set of Activities displayed in the Activity Plan is not fixed or coded into the UI but is rather determined at the moment display is requested according to the following criteria:

-   -   1. All Activities that have been launched and are either         complete or in progress under the Conductor for the Work-Item at         hand.     -   2. The Activities are filtered by basic display rules (e.g.,         maximum number of first-level activities displayed horizontally         across the page, number of levels below the first level to be         displayed, maximum number of activities that can be displayed         vertically, etc.).     -   3. The Activities are further filtered by rules specific to the         user's Role (e.g., specific first-level Activities to display or         not display, number of levels below each of those first-level         Activities to display, etc.).     -   4. The Activities are further filtered by rules specific to the         Work-Item and the state of the Work-Item (e.g., whether a         particular document required by an Activity has been received         and has passed data validation rules).     -   5. In addition, display not-yet-started Activities only as far         to the right and as far down as the display and role rules allow         and as can be determined given the current context.

Basically, when a User arrives at a screen with an Activity Plan, the system makes a call to the Activity Engine with display and role rules to get back representations of the appropriate Activities and their respective statuses. The Activity Engine traverses its hierarchy of completed and in-progress Activities, obtaining representations and statuses for the ones that meet the filtering criteria. For Activities that have not yet started but which meet the filtering criteria and what is known from the current context, the Activity Engine evaluates just enough of the Activity logic to return a useful representation (e.g., a name).

Working Example

In FIG. 2, John Smith, a processor, is logged in and looking at a home purchase loan application for $100,000 for Hoyt Morgan. As depicted, this is fairly early on in the processing of this application—one of the sections of Loan Application data has been completed, a loan Program has been selected, a Rate Lock is in progress, an Appraisal has been ordered, received, and validated, and underwriting is in progress.

At the moment this loan was first created, a Conductor (again, a special-case Activity Performer responsible for performing a top-level Activity) was created and launched with the data structure comprising the data for the Hoyt Morgan loan. One could envision this kickoff call (simplified here for readability) as

Conductor (“ProcessLoan”, LoanAppHoytMorgan)

The overall hierarchy of activities (shown down to three levels) for a purchase loan is as follows:

Application

-   -   Lead Information         -   Lead Source and Data Info     -   Loan Application         -   Loan and Property Info         -   Borrower Info         -   Employment         -   Income         -   Assets and Liabilities         -   Supplemental     -   Program and Lock         -   Quick Lock         -   Program Select         -   Closing Costs         -   Rate Lock

Processing

-   -   Qualification Services         -   Credit Reports         -   Automated Underwriting         -   Verifications     -   Disclosures         -   Upfront Docs     -   Settlement Services         -   Appraisal         -   Title         -   Flood     -   Underwriting         -   Contract U/W             -   Mortgage Insurance Info     -   Underwriting         -   Submit to Underwriting         -   Underwriting Decision         -   Conditions     -   Closing         -   Scheduling             -   Calendar     -   Closing         -   Closing Fees         -   Closing Conditions         -   Closing Docs         -   Document Delivery     -   Funding         -   Funding Review         -   Funding Conditions         -   Funding

Post Closing

-   -   Execution         -   Pooling     -   Shipping         -   Submit to Shipping         -   Investor Delivery     -   Notifications         -   MERS         -   Servicing Transfer     -   Post-Close         -   Audit Audit         -   Buy Back Loans         -   Trailing Documents

The underlined Actions do not appear in John's screen depicted in FIG. 2 because John is of user role “Processor”, which would never have need to execute or even view status of those Activities.

Referring back to the section on data and FIG. 2, a template for each of the Activities above is described in the system as an Activity Pattern. A large part of the Pattern's information is encoded in the form of Rules. There are many categories of Rules for each Activity, such as display, status, and dependency rules.

For example in the Activity “Rate Lock” in the above example, a display rule might be

DisplayInActivityPlan    IF Role=LoanOfficer OR Role=Processor OR Role = Assistant    ANDIF VerticalPosition <= MaxVerticalPosition    ANDIF HorizontalPosition <= MaxHorizontalPosition

Status rules might be

ShowCompleteValid    IF RateLockComplete = TRUE AND RateLockValidation =    VALID ShowCompleteInvalid    IF RateLockComplete = TRUE AND RateLockValidation    INVALID

In another activity, “Conditions”, under the “Underwriting” top-level Activity (middle column), an example dependency rule might be

The Conductor checks dependency rules before status rules, and since the dependency on “Underwriting Decision's” status being complete and valid is not fulfilled, no status indicator is displayed for the “Condition” Activity. Thus John cannot launch this activity before an underwriting decision has been rendered. In contrast both Title and Flood are startable (bottom of second column, “Processing”); John could start these in either order and could start the second one before the first one finishes, the system carrying out its parts of the activities in the background in parallel.

If, e.g., John wants to initiate getting a flood certificate, he clicks the Activity “Flood” (at the bottom of the second column, “Processing”); this interaction is processed by the Conductor and understood to be the launching of an Activity; the Conductor launches an Activity Manager:

ManageActivity (“Flood”, LoanAppHoytMorgan)

The Activity Manager initializes any state variables needed for this activity and in turn calls an Activity Performer to carry out the work:

PerformActivity(“Flood”, LoanAppHoytMorgan

PerformActivity entails a recursive call to the Activity Engine (the Activity Engine is the software entity that does the performing). Each Activity has a data structure (defined by the Activity's pattern) that includes a list structure for any Child Activities. PerformActivity will create Activity Managers for any such Child Activities, and each Activity Manager will initialize the necessary state and launch Activity Performers as above. This is how the recursion of the Activity Engine is implemented. Here is a simplified example of the implementation of the PerformActivity routine in pseudo-code:

PerformActivity( String ActivityName, ActivityStruct ThisActivity ) {    Switch( ActivityName ) {      Case ( “X” ) {        ...      }      Case ( “Y” ) {        ...          }          Case ( “Flood” ) {            ...            If( ThisActivity.ChildActivities.Count > 0 ) Then {              Foreach( Activity in ThisActivity.ChildActivities              } do {               ManageActivity( Activity.Name,               LoanAppHoytMorgan )               }            }          }        }      }    }

In the example above, a flood certificate is generated by an external, third-party service. A simple UI is presented for the user to double-check some key data elements and perhaps choose a particular vendor. When the user is finished with this screen and indicates to continue, the Activity Performer makes the call to the external provider, something along the lines of

-   -   CallWebService(https://service.aaaflodcertificates.com,         XMLStructHoytMorgan)

A good example of how Events, the Conductor's Event Queue, and the Conductor's Clock fit together is the submission to underwriting. Assuming John has submitted (thus the Status Indicator next to “Submit to U/W” would have turned to full green), and though he can start and even finish Activities that don't have dependencies on Underwriting (such as Title and Flood), he cannot start clearing conditions until “U/W Decision” has turned to full and green. John himself, as a Processor, cannot carry out the underwriting decision (it is there in his list because he is critically dependent on its status). The Underwriter (Mary Jones) must carry out the Underwriting Activity.

The moment John completes “Submit to U/W”, two Events are generated and put in the Conductor's Event Queue. The first is for Mary, indicating that there is an Activity for this Work-Item (the Hoyt Morgan loan) that requires her input or attention. This Event causes as item to appear in Mary's Main Queue the next time she logs in, and, if the system is so configured, also triggers an email to be sent to Mary indicating that she should log in. The second Event is for the Conductor itself, an “escalation” event with a target time set in the future (e.g. 48 hours from the moment of submission). The Conductor uses its Clock to regularly (e.g. every 10 minutes) check the Event Queue for clocked Events. In this example, if 48 hours elapse and the Conductor finds that Mary has not responded to her Event for the Hoyt Morgan loan, the escalation Event will cause the Conductor to generate a new event for Mary's boss and/or a peer to get the dependent Activity (underwriting decision) fulfilled.

Although the present invention has been described in terms of the presently preferred embodiments, it is to be understood that the disclosure is not to be interpreted as limiting. Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above disclosure. Accordingly, it is intended that the appended claims be interpreted as covering all alterations and modifications as fall within the “true” spirit and scope of the invention. 

What is claimed is:
 1. Non-transitory computer storage comprising instructions which, when executed, direct a computer system coupled to at least one repository to perform a method comprising: launching, by the computer system, a plurality of activities representing tasks to be completed in the processing of a workflow, wherein execution to completion of at least some of the activities is dependent upon a change in state of at least one other of the plurality of activities; providing, by the computer system, output comprising a user interface including graphical indications of at least some of the activities; at a current stage in the processing of the workflow, and by the computer system: determining that a first set of the plurality of activities are currently available for execution; determining that a second set of the plurality of activities are not currently available for execution, wherein the availability for execution of the activities in the second set is currently dependent upon a change in state of the at least one other of the plurality of activities; updating the output based at least in part on the determining that a second set of the plurality of activities are not currently available for execution; and in response to user interaction with the user interface, executing at least one activity in the first set of activities.
 2. The non-transitory computer readable storage medium of claim 1, wherein the sequence of execution of the plurality of activities dynamically unfolds and is not statically defined at the outset of processing the workflow.
 3. The non-transitory computer readable storage medium of claim 1, wherein the availability for execution of at least some of the activities in the second set of activities is dependent on a change in state of at least one of the activities in the first set.
 4. The non-transitory computer readable storage medium of claim 1, wherein the method further comprises, for a first activity of the plurality of activities: detecting an event that indicates a change in state of another activity of the plurality of activities that renders the first activity no longer complete and valid; and changing a status of the first activity to indicate that the first activity is no longer complete and valid, wherein the availability for execution of at least one of the activities in the second set is dependent upon the first activity being complete and valid.
 5. The non-transitory computer readable storage medium of claim 1, wherein the workflow is for processing a loan application.
 6. The non-transitory computer readable storage medium of claim 1, wherein the method further comprises: during the processing of the workflow, adding a new rule associated with one or more of the plurality of activities; and by the computer system, processing the one or more activities for which the new rule was added using at least the new rule.
 7. The non-transitory computer readable storage medium of claim 1, wherein the method further comprises: during the processing of the workflow, adding an activity to the plurality of activities; and by the computer system, launching the added activity.
 8. The non-transitory computer readable storage medium of claim 1, wherein the method further comprises, based on the role of a current user in a group of users associated with the processing of the workflow, filtering the plurality of activities to arrive at a subset of the plurality of activities that are associated with the current user, wherein the activities in the first set are included in the subset.
 9. The non-transitory computer readable storage medium of claim 8, wherein the method further comprises: during the processing of the workflow, adding a new user to the group of users associated with the workflow, wherein said step of filtering the plurality of activities to arrive at the subset is performed for the new user.
 10. Non-transitory computer storage comprising instructions which, when executed, direct a computer system coupled to at least one repository to perform a method comprising: launching, by the computer system, a plurality of activities representing tasks to be completed in the processing of a workflow, wherein execution to completion of at least some of the activities is dependent upon a change in state of at least one other of the plurality of activities; providing, by the computer system, output comprising a user interface including graphical indications of at least some of the activities; determining, by the computer system, that a first set of the plurality of activities are currently available for execution; in response to a change in state of at least one of the activities in the first set of activities, determining, by the computer system, that a second set of the plurality of activities are currently available for execution, wherein at least one of the activities in the second set is not included in the first set; and updating, by the computer system, the graphical indications based at least in part on the determining that a second set of the plurality of activities are currently available for execution in response to a change in state of at least one of the activities in the first set of activities.
 11. The non-transitory computer readable storage medium of claim 10, wherein the sequence of execution of the plurality of activities dynamically unfolds and is not statically defined at the outset of processing the workflow.
 12. The non-transitory computer readable storage medium of claim 10, wherein the workflow is for processing a loan application.
 13. The non-transitory computer readable storage medium of claim 10, wherein the method further comprises, in response to a change in state of an activity of the plurality of activities from being complete and valid to being no longer complete and valid, determining that an activity in the first set is no longer available for execution and is not to be included in the second set.
 14. The non-transitory computer readable storage medium of claim 10, wherein the method further comprises: during the processing of the workflow, adding a new rule associated with one or more of the plurality of activities; and by the computer system, processing the one or more activities for which the new rule was added using at least the new rule.
 15. The non-transitory computer readable storage medium of claim 10, wherein the method further comprises: during the processing of the workflow, adding an activity to the plurality of activities; and by the computer system, launching the added activity.
 16. The non-transitory computer readable storage medium of claim 10, wherein the method further comprises: based on the role of a current user in a group of users associated with the processing of the workflow, filtering the plurality of the plurality of activities to arrive at a subset of the plurality of activities that are associated with the current user; and wherein the first and second sets of the plurality of activities include only activities in the filtered subset.
 17. Non-transitory computer storage comprising instructions which, when executed, direct a computer system coupled to at least one repository to perform a method comprising: launching, by the computer system, a plurality of activities representing tasks to be completed in the processing of a workflow, wherein execution to completion of at least some of the activities is dependent upon a change in state of at least one other of the plurality of activities; providing, by the computer system, output comprising a user interface including graphical indications of at least some of the activities; at a first stage in the processing of the workflow, by the computer system: determining that a first set of the plurality of activities are currently available for execution; determining that a second set of the plurality of activities are not currently available for execution, wherein the availability for execution of the activities in the second set is currently dependent upon a change in state of the at least one other of the plurality of activities; updating the graphical indications based at least in part on the determining that a second set of the plurality of activities are not currently available for execution; at a second stage in the processing of the workflow that is subsequent to the first stage, by the computing system: in response to a change in state of an activity in the first set of activities, determining that a third set of the plurality of activities are currently available for execution, and wherein the third set of activities includes at least one of the activities in the second set of activities; and completing execution of the plurality of activities to process the workflow. 